This is indeed some great work and editing! Keep it up. It has a very special feel to it, very creative. Great use to colors! Such a lovely, interesting piece. However, I kind of feel as if this idea was already used at one point. It's very nice though, and the tree should have a brighter color in order for it to stand out more from the city; here, it's a bit grey-ish, as if the tree was the thing fading along the town, not the thing standing out. Overall though, great job! I love it, and I think others will as well.
Excellent work, great use of light and a good idea to use such a light-ribbon around the tree, it gives a lot of motion to the picture and underlines how "holy" a tree should be seen in a context like a city. If I must look for some improvements I'll modify a little the smokes out of the chimneys and the leaves are a little bit too dense and they are a little unrelated from background. It's an amazing work anyway, I like it a lot, also because you gave us something beautiful in such an over-exploited theme. Sorry for my english but keep doing such amazing works!